A method and apparatus for compensating for media shift due to spiral groove roller tape guide is disclosed. The lateral tape shift is measured. Then the control of the coarse actuator is adjusted for the lateral tape shift so that the movement of the coarse actuator follows the tape shift....http://www.google.de/patents/US6963467?utm_source=gb-gplus-sharePatent US6963467 - Method and apparatus for compensating for media shift due to tape guide
